Examples:
cartography
card
archaeology
archetype
monarchy
legal
loyal
purse
personal
cinema
kinase
car
carpenter
hippopotamus
Mesopotamia
dative
data
date
...
Old English
sigþe
←
Proto-Germanic
*sigiþiz
(inherited)
←
Proto-Germanic
*sigiþô
(mention)
←
Proto-West Germanic
*sigiþi
(inherited)
←
Proto-West Germanic
*sigiþō
(mention)
←
Proto-Indo-European
*sek-
(derived)